With December just a couple of weeks away, the holiday season is truly upon us. While tradition dictates that you should start an Advent Calendar on Dec. 1 and continue with it every day until Dec. 25 ...

Our civilization relies on calendars to organize and measure time. Culture, religion, and astronomy have all influenced calendars throughout history. Calendars have a fascinating history, dating back ...

Lunar New Year began Saturday February 10. But have you ever stopped to wonder why it's celebrated at this time or where the current Chinese calendar comes from? Space historian Osnat Katz Moon says ...